24M comes out of stealth with $54.5M raised to slash production costs of lithium-ion batteries
The story of the invention that could revolutionize batteries—and maybe American manufacturing as well — The world has been clamoring for a super-battery.
Context & Ripple Effects
24M's emergence lands four months after Quartz profiled John B. Goodenough, the lithium-ion inventor now chasing a super-battery — this company is one of the first attempts to commercialize the next act of that lineage, attacking not chemistry but the cost of making cells at scale.
The raise also opens a decade-long capital arc this page tracks: five years later Advano raised $18.5M for scrap-silicon battery components, and by early 2026 the money had scaled up the whole stack — Redwood expanding its Series E to $425M at a reported $6B valuation with Google joining for cathode supply and recycling, and [[a:1162835|Lunar Energy raising $232M for software that syncs home batteries into virtual power plants]].
First-order effects
- Battery manufacturers gain a candidate route to materially lower production costs, and 24M exits stealth holding $54.5M to prove the process works outside the lab.
Second-order effects
- Capital splits by layer of the stack rather than competing head-on: Advano attacks cell performance through materials while 24M attacks process cost, and later entrants like Redwood target the same cathode economics 24M's cheaper cells would pressure.
Third-order effects
- If cell costs keep falling along the path 24M bet on, batteries stop being a component and become infrastructure — which is exactly where the corpus ends up, with Lunar Energy selling coordination software for fleets of cheap home batteries rather than the batteries themselves.
The trend: Venture capital spent the decade after 24M's stealth exit funding every layer of the battery stack — cell manufacturing, materials, recycling, and grid software — as lithium-ion moved from gadget component to industrial infrastructure.